Seamless steel tube for agricultural irrigation
By setting up anti-corrosion layers and waterproof membranes on seamless steel pipes and adopting a quick connection design, the problems of easy corrosion and inconvenient connection of steel pipes in the irrigation system are solved, and corrosion resistance is improved and convenient installation and maintenance are achieved.
Patent Information
- Application Number
- CN202420927471.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-04-30
AI Technical Summary
Existing seamless steel pipes are susceptible to corrosion in irrigation systems, especially in water sources that use pesticides, resulting in a shorter service life and traditional connection methods are inconvenient for installation, disassembly and maintenance.
The first and second anticorrosion layers are respectively provided on the inner and outer walls of the seamless steel pipe, and waterproof film is applied on the inner side. The design of a cylindrical connector and a connecting seat is adopted, and the limit ring, limit groove and cam-like limit position is obtained. The combination of blocks enables rapid installation and disassembly.
It improves the corrosion resistance of steel pipes, extends service life, reduces the adhesion of scale and biofilm, simplifies the installation, disassembly and maintenance of pipelines, and adapts to changes in irrigation needs.
Smart Images

Figure CN222437262U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of irrigation devices, in particular to a seamless steel pipe used for agricultural irrigation. Background Art
[0002] With the development of modern agricultural technology, greenhouse cultivation has become an important means to improve crop yield and quality. In greenhouse irrigation systems, choosing the right pipe is crucial to ensure efficient and stable operation of the system. Seamless steel pipes have been widely used in this field due to their unique physical and chemical properties. The durability of seamless steel pipes reduces long-term maintenance costs and has higher economic benefits in the long run. The stable structure enables it to withstand pressure fluctuations in the irrigation system and ensure smooth water delivery. However, when using seamless steel pipes for irrigation systems, long-term irrigation and the humid environment in the greenhouse will cause certain corrosion to the steel pipes, especially when irrigation is carried out after mixing pesticides in water. Pesticides are more corrosive and seriously affect the service life of the steel pipes. In addition, long-term use of river and lake water as irrigation water sources will cause scale or biofilm on the inner wall of the pipe body, which is not easy to clean. In addition, traditional seamless steel pipes are usually connected by welding or threaded joints, which are time-consuming and labor-intensive to disassemble and install. Using such a method, the pipeline is not convenient for connection and maintenance of the pipeline in the later stage, nor is it convenient for the pipeline to increase or decrease according to irrigation needs in the later stage. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a seamless steel pipe for agricultural irrigation in view of the deficiencies of the prior art, so as to solve at least one of the above technical problems.
[0004] The utility model solves the above technical problems with the following technical solutions: a seamless steel pipe for agricultural irrigation, comprising a plurality of pipe bodies, the inner wall of the pipe body is provided with a first anti-corrosion layer, the outer wall of the pipe body is provided with a second anti-corrosion layer, the inner side of the first anti-corrosion layer is provided with a protective layer, the protective layer is a waterproof film, one end of the pipe body is sleeved with a cylindrical connector, the connector is fixedly connected to the pipe body, an annular limiting ring is provided at the end of the connector, and a smoothly transitional limiting groove is provided at the connection between the limiting ring and the connector, The other end of the tube body is sleeved with a cylindrical connecting seat, and a connecting cavity is provided on one side of the connecting seat, and the connecting cavity is gap-matched with a limiting ring. The connecting seat is provided with a mounting groove and the mounting groove is movably connected to a limiting block through a pin shaft. The number of the limiting blocks is two and they are symmetrically arranged. After the limiting block is retracted outward, the limiting block does not exceed the connecting cavity. The limiting block is cam-shaped and the limiting block is matched with the limiting groove. The limiting block is connected to a rod body, and an annular sealing gasket is installed in the connecting cavity. Several of the tube bodies are connected to each other through a connector and a connecting seat.
[0005] Furthermore, the first anti-corrosion layer and the second anti-corrosion layer are both coated on the pipe body.
[0006] Furthermore, the materials of the first anti-corrosion layer and the second anti-corrosion layer are made of a mixture of epoxy resin, a curing agent and a diluent.
[0007] Furthermore, the waterproof membrane is coated on the first anti-corrosion layer.
[0008] Furthermore, the material of the waterproof membrane is a mixture of base material, filler, solvent and additive.
[0009] Furthermore, the end of the connecting body is flush with the end of the tube body.
[0010] Furthermore, the inner side of the connecting cavity is flush with the end of the tube body.
[0011] Furthermore, a limiting hole is provided at the end of the rod body.
[0012] The beneficial effects of the utility model are:
[0013] The device can improve the corrosion resistance of the pipe body and extend the service life of the pipe body by arranging an anti-corrosion layer on the pipe body. The device can prevent the adhesion of scale and biofilm by arranging a protective layer, thereby eliminating or reducing the subsequent cleaning work. The device can also quickly install or disassemble the pipe body through a connector and a connector seat that can be quickly installed and disassembled, which facilitates the subsequent repair and maintenance of the pipeline and also has good practicality according to the increase or decrease of the pipeline in the future according to the irrigation demand. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the pipe body structure of the utility model.
[0015] Figure 2 This is a schematic diagram of the structure of the connecting seat and the connecting body of the utility model.
[0016] Figure 3 It is a structural schematic diagram of the connecting seat and the connecting body of the utility model when connected.
[0017] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0018] Tube body 1; first anti-corrosion layer 2; second anti-corrosion layer 3; protective layer 4; connector 5; limiting ring 51; limiting groove 52; connecting seat 6; connecting cavity 61; limiting block 62; pin shaft 63; rod body 64; limiting hole 65; sealing pad 7. DETAILED DESCRIPTION
[0019] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the contents of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to the application.
[0020] Example 1: See Figures 1 to 3 It is a schematic diagram of each structure of the utility model, including several pipe bodies 1, the inner wall of the pipe body 1 is provided with a first anti-corrosion layer 2, and the outer wall of the pipe body 1 is provided with a second anti-corrosion layer 3, which can effectively avoid corrosion from the external environment, water sources or pesticides. A protective layer 4 is provided on the inner side of the first anti-corrosion layer 2, and the protective layer 4 is a waterproof film. The hydrophobicity and smooth surface of the waterproof film can avoid the adhesion of scale or biofilm. A cylindrical connector 5 is sleeved on one end of the pipe body 1, and the connector 5 is fixedly connected to the pipe body 1. An annular limiting ring 51 is provided at the end of the connector 5, and a smoothly transitioned limiting groove 52 is provided at the connection between the limiting ring 51 and the connector 5, which is used to limit and fix the connector 5. A cylindrical connecting seat 6 is sleeved on the other end of the pipe body 1, and a connecting cavity 61 is provided on one side of the connecting seat 6. The connection cavity 61 and the limiting ring 51 are clearance-matched, so that the connection body 5 can be placed in the connection cavity 61. The connection seat 6 is provided with a mounting groove and the mounting groove is movably connected to the limiting block 62 through a pin shaft 63. There are two limiting blocks 62 and they are symmetrically arranged. After the limiting block 62 is retracted outward, the limiting block 62 does not exceed the connection cavity 61 to avoid the limiting block 62 and the limiting ring 51 conflict so that the connection block cannot be placed in the connection cavity 61. The limiting block 62 is cam-shaped and the limiting block 62 cooperates with the limiting groove 52. The cam-shaped structure can squeeze the limiting ring 51 when it is rotated into place, so as to realize the sealing connection between the connection body 5 and the connection seat 6. The limiting block 62 is connected to a rod body 64. An annular sealing gasket 7 is installed in the connection cavity 61. Several tube bodies 1 are connected to each other through the connection body 5 and the connection seat 6.
[0021] Furthermore, the first anti-corrosion layer 2 and the second anti-corrosion layer 3 are both coated on the pipe body 1 .
[0022] Furthermore, the materials of the first anti-corrosion layer 2 and the second anti-corrosion layer 3 are made of a mixture of epoxy resin, a curing agent and a diluent. The epoxy resin coating has excellent adhesion and corrosion resistance and can block most chemicals, including pesticides, thereby improving the corrosion resistance of the pipe body 1.
[0023] Furthermore, a waterproof membrane is coated on the first anti-corrosion layer 2 .
[0024] Furthermore, the material of the waterproof membrane is a mixture of a base material, a filler, a solvent, and an additive. The base material is made of synthetic resin, natural resin or rubber. Fillers such as aluminum oxide, silicon oxide and mica are used to increase the thickness and hardness of the coating and improve the wear resistance and weather resistance of the coating. Solvents such as alcohol, ketone and ether are used to dissolve or disperse the filler and additives in the base material. The additives include thickeners, modifiers, diluents and anti-settling agents. The thickener controls the fluidity and consistency of the coating, and the modifier improves the performance of the coating, such as durability and adhesion; the diluent adjusts the concentration of the coating; the anti-settling agent prevents the deposition of filler particles; at the same time, antibacterial agents, anti-algae agents, etc. are added to enhance the anti-fouling, anti-biological growth and other properties of the coating.
[0025] Furthermore, the end of the connector 5 is flush with the end of the tube body 1 to facilitate sealing.
[0026] Furthermore, the inner side of the connecting cavity 61 is flush with the end of the tube body 1 to facilitate sealing.
[0027] Furthermore, a limiting hole 65 is provided at the end of the rod body 64 to facilitate fixing the rod body 64 .
[0028] When using the utility model, the two tube bodies 1 are aligned head to tail, the limit block 62 is opened outward, the sealing gasket 7 is placed in the connecting cavity 61, the connector 5 is inserted into the connecting cavity 61 and contacts the sealing gasket 7, and the rod body 64 is rotated to make the limit block 62 cooperate with the limit groove 52, and the connector 5 squeezes the sealing gasket 7 to achieve a sealing effect, and the rod body 64 is fixed by passing an iron wire through the limit hole 65 to avoid separation during long-term use.
[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A seamless steel pipe for agricultural irrigation, characterized by: The invention comprises a plurality of pipe bodies (1), wherein the inner wall of the pipe body (1) is provided with a first anti-corrosion layer (2), the outer wall of the pipe body (1) is provided with a second anti-corrosion layer (3), the inner side of the first anti-corrosion layer (2) is provided with a protective layer (4), the protective layer (4) is a waterproof membrane, one end of the pipe body (1) is sleeved with a cylindrical connector (5), the connector (5) is fixedly connected to the pipe body (1), an annular limiting ring (51) is provided at the end of the connector (5), a smoothly transition limiting groove (52) is provided at the connection between the limiting ring (51) and the connector (5), the other end of the pipe body (1) is sleeved with a cylindrical connecting seat (6), one side of the connecting seat (6) is provided with a cylindrical connecting seat (6), and the connecting seat (6) is provided with a cylindrical connecting seat (6). A connecting cavity (61) is provided on the side, and the connecting cavity (61) is clearance-matched with the limiting ring (51). The connecting seat (6) is provided with a mounting groove, and the mounting groove is movably connected to the limiting block (62) through a pin shaft (63). The number of the limiting blocks (62) is two and they are symmetrically arranged. After the limiting block (62) is retracted outward, the limiting block (62) does not exceed the connecting cavity (61). The limiting block (62) is cam-shaped and the limiting block (62) is matched with the limiting groove (52). The limiting block (62) is connected to a rod body (64). An annular sealing gasket (7) is installed in the connecting cavity (61). Several of the tube bodies (1) are connected to each other through the connector (5) and the connecting seat (6).
2. The seamless steel pipe for agricultural irrigation according to claim 1, characterized in that: The first anti-corrosion layer (2) and the second anti-corrosion layer (3) are both coated on the pipe body (1).
3. The seamless steel pipe for agricultural irrigation according to claim 1, characterized in that: The waterproof membrane is coated on the first anti-corrosion layer (2).
4. The seamless steel pipe for agricultural irrigation according to claim 1, characterized in that: The end of the connecting body (5) is flush with the end of the tube body (1).
5. The seamless steel pipe for agricultural irrigation according to claim 1, characterized in that: The inner side of the connecting cavity (61) is flush with the end of the tube body (1).
6. The seamless steel pipe for agricultural irrigation according to claim 1, characterized in that: A limiting hole (65) is provided at the end of the rod body (64).